Tilt-Sim

An ESP32-based Tilt Hydrometers Simulator.

Description

Useful for developing/debugging Tilt clients and tools. A single ESP32 device can simulate multiple (16) Tilt / Tilt Pro devices.

The device will also show a simple HTML page when accessed. For example:

# use Bonjour (mDNS) to open the web page and have it refresh every 5 seconds
$ open http://tilt-sim.local./?refresh=5

Using the simple REST API you can script, e.g. several curl calls, a (condensed) fermentation session to test your software.

# turn all tilts off - they are all active by default
$ curl "http://tilt-sim.local./setTilt?name=*&active=off"
# acticate the purple tilt
$ curl "http://tilt-sim.local./setTilt?name=purple&active=on&sg=1.2001&temp=65.1"
# there's too much precision for the older tilt but it would be fine with the pro version
$ curl "http://tilt-sim.local./setTilt?name=red*hd&active=on&sg=1.2001&temp=65.1"

Build

You can build this project using VSCode and PlatformIO.

You'll need to define SSID and PASSWORD to match your wifi environment.

History

In early 2021 (which means confined at home) I had both an idea and time to update my BLE-WiFi bridge for my tilt hydrometers. However the tilts were busy doing their real job... but I did have a few ESP32 controllers doing nothing. Yet another project was born :-)

Screenshot

Ideas

This code could be adapted to:

• Create other iBeacon simulators
• Relay the bluetooth signal to the original app. The Bluetooth-only app could show you the data coming from anywhere in the world.
  • Tilt -> BLE -> Bridge -> Wifi -> {internet} -> Sim -> BLE -> app